2分钟英语演讲稿范文:Blue Planet
2分钟英语演讲稿范文:blueplanetweallhaveacommonhome.sheprovidesuswithenoughfood,enoughwaterandenoughlivingroom.wegeteverythingfromthenaturetolivebetter,butwedonnotdoanythingtoprotecther.howtheairispollu...
2分钟英语演讲稿范文:blueplanetweallhaveacommonhome.sheprovidesuswithenoughfood,enoughwaterandenoughlivingroom.wegeteverythingfromthenaturetolivebetter,butwedonnotdoanythingtoprotecther.howtheairispollu...